Top eight Sensex companies, led by energy major ONGC, added a whopping Rs 1,46,741 crore to their market valuation last week.

Amid a strong stock market where the benchmark Sensex gained 4.87 per cent or 1,179.12 points last week, eight companies from the top-10 list of India’s most valuable firms saw surge in their market capitalisation (m-cap), including RIL, CIL, SBI and L&T.

ONGC was the star performer among the top-10 firms as its m-cap zoomed Rs 73,363.33 crore to Rs 3,96,974.74 crore. During the week, shares of the state-owned firm jumped 22.67 per cent.

The market value of RIL soared by Rs 17,731.12 crore to Rs 3,62,015.53 crore, while that of SBI skyrocketed Rs 14,203.56 crore to Rs 2,03,974.97 crore.